{"instruction": "You are an expert in event argument extraction. Please extract event arguments and their roles from the input that conform to the schema definition, which already includes event trigger words. If an argument does not exist, return NAN or an empty dictionary. Please respond in the format of a JSON string.", "schema": [{"event_type": "ransom", "arguments": ["victim", "damage amount", "price", "place", "attack pattern", "tool", "time", "payment method", "attacker"]}], "input": "Detailed by researchers at Barracuda Networks , the invoice impersonation attacks aim to persuade the victim that the messages are from trusted sources , or to act on impulse -- planting the idea that the target has lost money is a common tactic in phishing emails , as it creates panic for the user ."}
{"ransom": []}